Extech Instruments MN62 User manual

USERGUIDE



TrueRMSDigitalMultimeter

WithNon‐ContactVoltageDetectorandLowPassFilter



ModelMN62

MN62‐en‐GB_V1.112/15

Introduction

ThankyouforselectingtheModelMN62TrueRMSAuto‐rangingMultimeter.Thismetermeasures

AC/DCVoltage,AC/DCCurrent,VariableFrequencyVoltage(VFC),Resistance,Capacitance,

Frequency,DutyCycle(AConly),DiodeTest,andContinuity;aNon‐ContactVoltageDetectoris

alsobuilt‐in.Thisdeviceisshippedfullytestedandcalibratedand,withproperuse,willprovide

yearsofreliableservice.Pleasevisitourwebsite(www.extech.com)tocheckforthelatestversion

ofthisUserGuide,ProductUpdates,ProductRegistration,andCustomerSupport.



Features

TrueRMSACMeasurements

Non‐contactVoltageDetector

4000CountMultifunctionLCDDisplay

AutomaticandManualRanging

MAX‐MINReadingMemory

RelativeMode

DataHold

VariableFrequencyVoltagemode(VFC)offerslowpassfilter

AutomaticPowerOFF(APO)

Rugged,BatteryOperated,andPortable



MN62‐en‐GB_V1.112/15

Safety

TheMN62isdesignedincompliancewithstandardssuchasIEC/EN61010‐1,pollutiongradeII,

overvoltageCATIII600Vanddoubleinsulationstandards.Pleasecomplywiththeinstructions

providedinthisguideotherwisetheprotectionprovidedbytheinstrumentmaybeaffected.

Thissymboladjacenttoanothersymbol,terminaloroperatingdeviceindicates

thattheoperatormustrefertoanexplanationintheOperatingInstructionsto

avoidpersonalinjuryordamagetothemeter.

ThisWARNINGsymbolindicatesapotentiallyhazardoussituation,whichifnot

avoided,couldresultindeathorseriousinjury.

ThisCAUTIONsymbolindicatesapotentiallyhazardoussituation,whichifnot

avoided,mayresultdamagetotheproduct.

Thissymboladvisestheuserthattheterminal(s)somarkedmustnotbe

connectedtoacircuitpointatwhichthevoltagewithrespecttoearthground

exceeds(inthiscase)600VACrmsorDC.

Thissymboladjacenttooneormoreterminalsidentifiesthemasbeing

associatedwithrangesthatmay,innormaluse,besubjectedtoparticularly

hazardousvoltages.Formaximumsafety,themeteranditstestleadsshould

notbehandledwhentheseterminalsareenergized.

Thissymbolindicatesthatadeviceisprotectedthroughoutbydouble

insulationorreinforcedinsulation.



PERIEC1010OVERVOLTAGEINSTALLATIONCATEGORY

OVERVOLTAGECATEGORYI

EquipmentofOVERVOLTAGECATEGORYIisequipmentforconnectiontocircuitsinwhich

measuresaretakentolimitthetransientovervoltagestoanappropriatelowlevel.

Note–Examplesincludeprotectedelectroniccircuits.

OVERVOLTAGECATEGORYII

EquipmentofOVERVOLTAGECATEGORYIIisenergy‐consumingequipmenttobesuppliedfrom

thefixedinstallation.

Note–Examplesincludehousehold,office,andlaboratoryappliances.

OVERVOLTAGECATEGORYIII

EquipmentofOVERVOLTAGECATEGORYIIIisequipmentinfixedinstallations.

Note–Examplesincludeswitchesinthefixedinstallationandsomeequipmentforindustrialuse

withpermanentconnectiontothefixedinstallation.

OVERVOLTAGECATEGORYIV

EquipmentofOVERVOLTAGECATEGORYIVisforuseattheoriginoftheinstallation.

Note–Examplesincludeelectricitymetersandprimaryover‐currentprotectionequipment

WARNING

CAUTION

MAX

600V

MN62‐en‐GB_V1.112/15

CAUTIONS

Improperuseofthismetercancausedamage,shock,injuryordeath.Readandunderstandthisuser

manualbeforeoperatingthemeter.

Alwaysremovethetestleadsbeforereplacingthebatteryorfuses.

Inspecttheconditionofthetestleadsandthemeteritselfforanydamagebeforeoperatingthemeter.

Usegreatcarewhenmakingmeasurementsifthevoltagesaregreaterthan30VACrmsor60VDC.These

voltagesareconsideredashockhazard.

AlwaysdischargecapacitorsandremovepowerfromthedeviceundertestbeforeperformingDiode,

ResistanceorContinuitytests.

Voltagechecksonelectricaloutletscanbedifficultandmisleadingbecauseoftheuncertaintyof

connectiontotherecessedelectricalcontacts.Othermeansshouldbeusedtoensurethattheterminals

arenot"live".

Iftheequipmentisusedinamannernotspecifiedbythemanufacturer,theprotectionprovidedbythe

equipmentmaybeimpaired.

Thisdeviceisnotatoyandmustnotreachchildren’shands.Itcontainshazardousobjectsaswellassmall

partsthatthechildrencouldswallow.

Incasethedeviceisgoingtobeunusedforanextendedperiodoftime,removethebatteriesandstore

themseparately.

Expiredordamagedbatteriescancausecauterizationoncontactwiththeskin.Useprotectivegloves

whenhandling.

Donotshort‐circuitthebatteries.Donotthrowbatteriesintoafire.



Thismeterhasbeendesignedforsafeuse,butmustbeoperatedwithcaution.Theruleslistedbelowmust

becarefullyfollowedforsafeoperation.



1. NEVERapplyvoltageorcurrenttothemeterthatexceedsthespecifiedmaximum:

InputProtectionLimits

FunctionMaximumInput

VDCorVAC600VDC/ACrms

µA/mAAC/DC500mA600Vfastactingfuse

AAC/DC10A600Vfastactingfuse

Frequency,Resistance,Capacitance,DutyCycle,

DiodeTest,Continuity

600VDC/ACrms

2. USEEXTREMECAUTIONwhenworkingwithhighvoltages.

3. DONOTmeasurevoltageifthevoltageonthe"COM"inputjackexceeds600Vaboveearthground.

4. NEVERconnectthemeterleadsacrossavoltagesourcewhilethefunctionswitchisinthecurrent,

resistance,ordiodemode.Doingsocandamagethemeter.

5. ALWAYSdischargefiltercapacitorsinpowersuppliesanddisconnectthepowerwhenmakingresistance

ordiodetests.

6. ALWAYSturnoffthepoweranddisconnectthetestleadsbeforeopeningthecoverstoreplacethefuse

orbatteries.

7. NEVERoperatethemeterunlessthebackcoverandthebatteryandfusecoversareinplaceandfastened

securely.

8. NEVERchangethemeasurementfunctionbyturningthefunctiondialwhiletesting.

9. Iftheequipmentisusedinamannernotspecifiedbythemanufacturer,theprotectionprovidedbythe

equipmentmaybeimpaired.

MN62‐en‐GB_V1.112/15

MeterDescription

1. Non‐ContactVoltageDetectorLEDlamp

2. LCDDisplay

3. MAX‐MIN

4. RANGEbutton

5. HOLD‐Backlightbutton

6. Functionswitch

7. ‘A’probeinputjack

8. ‘mAµA’probeinputjack

9. COM(‐)inputjack

10. Positive(+)inputjack

11. SELECT‐VariableFrequencyControlbutton

12. HZ‐%button

13. REL(Relative)button



Note:Tiltstand,testleadholders,andbattery/fusecompartmentareonrearofunit.



ButtonDescriptions

RANGEbutton

ThedefaultmodeisAutoRange.Tomanuallyrange,pressRANGEtostepthroughtheranges.

PressandholdRANGEtoreturntoAutoRangemode.AutoRangeisdisplayedinAutomode.

MAX‐MINbutton

PresstoactivatetheMAX/MINrecordingmode(MAXwillappear).Themeterwilldisplayand

holdthemaximumreading.Pressagain(MINwillappear).Themeterwilldisplayandholdthe

minimumreading.Toexit,pressandholdMAX‐MINfor2seconds.

REL(Relative)button

Thedisplayedvalue,atthetimeofthebuttonpress,becomestheReferencevaluewithwhich

subsequentreadingsarecompared.SeededicatedRelativemodesection.

HOLDandBacklightbutton

Shortpresstofreezedisplayedreading(Hiconisvisible).Pressagaintoreleasereading.

PressandholdtoswitchbacklightONorOFF.

Hz‐%button

Frequency(Hz)andDutyCycle(%)modes.AvailableonlyintheACVoltage/Currentand

Frequencymodes.

SELECT‐VFCbutton

ShortpressesselectACorDCforvoltageandcurrentmeasurements.

InACVoltageVFCmode,pressandholdtoaccessVFC(VariableFrequencyControl)wherea

lowpassfilterisemployedformeasuringthevoltageofavariablefrequency/speeddrive.

MN62‐en‐GB_V1.112/15

DisplayDescription

78910 11

21 13

VFC



1. Relativemode

2. Seeunitsprefixlistbelow

3. Ohms(Resistance)

4. Hertz(Frequency)

5. Seeunitsprefixlistbelow

6. Voltage

7. Seeunitsprefixlistbelow

8. Amperes(Amps)Current

9. Farads(Capacitance)

10. Percent(%)dutycycle(forAConly)

11. Batterystatusicon

12. APO(AutoPowerOFF)active

13. Measurementreadingdigits

14. Non‐contactvoltagedetector(displaysEFinreadingarea)

15. AutoRangeisshowninAutoRangemode

16. MAX‐MINmemoryactive

17. DataHoldactive

18. Continuitytest(Resistance)

19. Diodetest

20. Minus(negative)sign

21. AC(alternatingcurrent)orDC(directcurrent)mode

22. VFC(lowpassfilter)VariableFrequencyControl

Measurementunitprefixes

nnano(10‐9)(capacitance)

µmicro(10‐6)(amps,cap)

mmilli(10‐3)(volts,amps)

kkilo(103)(ohms)

Mmega(106)(ohms)

MN62‐en‐GB_V1.112/15

OperatingInstructions

WARNING:Riskofelectrocution.High‐voltagecircuits,bothACandDC,areverydangerousandshouldbe

measuredwithgreatcare.

1. ALWAYSturnthefunctionswitchtotheOFFpositionwhenthemeterisnotinuse.

2. IfOLappearsinthedisplayduringameasurement,thevalueexceedstheselectedrange.

Changetoahigherrange.

3. Ifthemeterdoesnotswitchonwhenthefunctiondialisturnedtoanypositionotherthan

OFF,pleasecheckthebatteries.RefertotheBatteryInstallationsectionofthisguide.

AUTOPOWEROFF(APO)

TheAPOfeatureturnsthemeteroffafter15minutesofinactivity.TodisableAPO,holdthe

SELECTbuttonwhileturningthemeteron.Themeterwillemit5beepsindicatingthatAPOhas

beendisabled(theAPOclockiconwillnotbevisibleonthedisplay).Turnthemeteroffandthen

onagaintore‐enableAPO(theAPOclockiconwillbevisibleonthedisplaywhenAPOisactive).

AUTOMATICandMANUALRange

ThemeterdefaultstoAUTORangemodewhenitisswitchedON.Inthismodethemeter

automaticallyselectsthebestrangeforthemeasurementsbeingmadeandisgenerallythebest

modeformostmeasurements.Formeasurementsituationsrequiringthatarangebemanually

selected,performthefollowing:

1. PresstheRANGEbutton.The“AUTORANGE”displayindicatorwillturnoff.

2. PresstheRANGEbuttontostepthroughtheavailableranges.

3. ToexittheManualRangingmodeandreturntoAutoranging,pressandholdtheRANGE

buttonfor2seconds.

MAX/MINMemory

1. PresstheMAX/MINbuttontoactivatetheMAX/MINrecordingmode.ThedisplayiconMAX

willappear.Themeterwilldisplayandholdthemaximumreadingandwillupdateonlywhen

anewmaximumreadingoccurs.

2. PresstheMAX/MINbuttonagainandthedisplayiconMINwillappear.Themeterwill

displayandholdtheminimumreadingandwillupdateonlywhenanewminimumreading

occurs.

3. ToexitMAX/MINmodepressandholdtheMAX/MINbuttonfor2seconds.

Relativemode

Therelativemeasurementfeatureallowstheusertomakemeasurementsrelativetoastored

referencevalue.Areferencevoltage,current,etc.canbestoredwheresubsequent

measurementscanbemadeincomparisontothatstoredreferencevalue.Thedisplayedvalueis

thedifferencebetweenthereferencevalueandthemeasuredvalue.

1. Performameasurementasdescribedintheoperatinginstructions.

2. PresstheRELbuttontostorethereading;theRelativeindicator willappearonthedisplay.

3. Thedisplaywillnowindicatethedifferencebetweenthestoredandmeasuredvalue.

4. PresstheRELbuttontoexittherelativemode.TheRelativeindicatorwillswitchOFF.

MN62‐en‐GB_V1.112/15

DisplayBacklight

Pressandholdthe buttontoturnthebacklightON/OFF.Thebacklightwillautomaticallyturn

offafter30seconds.

DataHold

TheDataHoldfunctionfreezesthereadinginthedisplay.PresstheHOLDbuttontoswitchData

HoldON/OFF.WhentheDataHoldmodeisactivethedisplaywillshowtheHicon.

DCVOLTAGEMEASUREMENTS

CAUTION:DonotmeasureDCvoltagesifamotoronthecircuitisbeingswitchedONorOFF.Largevoltage

surgesmayoccurthatcandamagethemeter.

1. SetthefunctionswitchtotheVposition.

2. PresstheSELECTbuttontoswitchtoDCifnecessary.

3. InserttheblacktestleadbananaplugintothenegativeCOMjack.

InserttheredtestleadbananaplugintothepositiveVjack.

4. Touchtheblacktestprobetiptothenegativesideofthecircuit.

Touchtheredtestprobetiptothepositivesideofthecircuit.

5. UsetheRANGEbuttontomanuallyrangethereading.Pressand

holdtheRANGEbuttontoreturntoAutoRangeMode.Readthe

voltageinthedisplay.



ACVOLTAGEMEASUREMENTS

WARNING:RiskofElectrocution.Theprobetipsmaynotbelongenoughtocontactthelivepartsinside

some240Voutletsforappliancesbecausethecontactsarerecesseddeepintheoutlets.Asaresult,the

readingmayshow0voltswhentheoutletactuallyhasvoltageonit.Makesuretheprobetipsaretouching

themetalcontactsinsidetheoutletbeforeassumingthatnovoltageispresent.



CAUTION:DonotmeasureACvoltagesifamotoronthecircuitisbeingswitchedONorOFF.Largevoltage

surgesmayoccurthatcandamagethemeter.

1. SetthefunctionswitchtotheVposition.

2. PresstheSELECTbuttontoswitchtoACifnecessary.

3. InserttheblacktestleadbananaplugintothenegativeCOMjack.

InsertredtestleadbananaplugintothepositiveVjack.

4. Touchtheblacktestprobetiptotheneutralsideofthecircuit.

Touchtheredtestprobetiptothe“hot”sideofthecircuit.

5. Readthevoltageinthedisplay.

6. UsetheRANGEbuttontomanuallyrangethereading.Pressand

holdtheRANGEbuttontoreturntoAutoRangeMode.

MN62‐en‐GB_V1.112/15

ACVOLTAGEMEASUREMENTSwithVFC,Hz,and%DutyCycle

WARNING:RiskofElectrocution.Theprobetipsmaynotbelongenoughtocontactthelivepartsinside

some240Voutletsforappliancesbecausethecontactsarerecesseddeepintheoutlets.Asaresult,the

readingmayshow0voltswhentheoutletactuallyhasvoltageonit.Makesuretheprobetipsaretouching

themetalcontactsinsidetheoutletbeforeassumingthatnovoltageispresent.



CAUTION:DonotmeasureACvoltagesifamotoronthecircuitisbeingswitchedONorOFF.Largevoltage

surgesmayoccurthatcandamagethemeter.

1. SetthefunctionswitchtotheVFCposition.

2. InserttheblacktestleadbananaplugintothenegativeCOMjack.

InsertredtestleadbananaplugintothepositiveVjack.

3. PressandholdtheVFCbuttonuntilthemeterbeepsandVFCis

brieflydisplayed.Themeterisnowapplyingalowpassfilter(Note:

VFCisVariableFrequencyControl).PressandholdtheVFCbutton

againtoexittheVFCmode(ENDwillbrieflydisplay).

4. Touchtheblacktestprobetiptotheneutralsideofthecircuit.

Touchtheredtestprobetiptothe“hot”sideofthecircuit.

5. Readthevoltageinthedisplay.

6. PresstheHz/%buttontoindicateHz.

7. Readthefrequencyinthedisplay.

8. PresstheHz/%buttonagaintoindicate%.

9. Readthe%dutycycleinthedisplay.

%DutyCycleNote:DutyCyclemeasurementsareAConlyforthismeter.Measurement

signalsmustbe‘zerocrossing’andmustreach‐0.7VforthemetertoproperlydisplayDuty

Cycle%.

MN62‐en‐GB_V1.112/15

DC/ACMILLIVOLTMEASUREMENTS

CAUTION:DonotmeasureDC/ACvoltagesifamotoronthecircuitisbeingswitchedONor

OFF.Largevoltagesurgesmayoccurthatcandamagethemeter.

1. SetthefunctionswitchtothemVposition.

2. InserttheblacktestleadbananaplugintothenegativeCOMjack.

InserttheredtestleadbananaplugintothepositiveVjack.

3. PresstheSELECTbuttontoselectDCorACmillivolts.

4. Touchtheblacktestprobetiptothenegativesideofthecircuit.

Touchtheredtestprobetiptothepositivesideofthecircuit.

(FigureatrightshowsDCmeasurementonly).

5. Readthevoltageinthedisplay.

6. ForAC,presstheHz/%buttontoindicateHz.

7. Readthefrequencyinthedisplay.

8. ForAC,presstheHz/%buttonagaintoindicate%.

9. Readthe%dutycycleinthedisplay.

DCCURRENTMEASUREMENTS

CAUTION:Donotmake5Acurrentmeasurementsforlongerthan30seconds.Allow15

minutesbetweentests.Exceeding30secondsmaycausedamagetothemeterand/orthetest

leads.

1. InsertblacktestleadbananaplugintothenegativeCOM

jack.

2. Forcurrentmeasurementsupto6000µADC,setthe

functionswitchtotheµApositionandinserttheredtest

leadbananaplugintotheµA/mAjack.

3. Forcurrentmeasurementsupto600mADC,setthefunction

switchtothemApositionandinserttheredtestlead

bananaplugintotheµA/mAjack.

4. Forcurrentmeasurementsupto10ADC,setthefunction

switchtotheApositionandinserttheredtestleadbanana

plugintothe10Ajack.

5. PresstheSELECTbuttontoindicateDConthedisplay.

6. Removepowerfromthecircuitundertest,thenopenupthe

circuitatthepointwhereyouwishtomeasurecurrent.

7. Touchtheblacktestprobetiptothenegativesideofthecircuit.Touchtheredtestprobe

tiptothepositivesideofthecircuit.

8. Applypowertothecircuit.

9. Readthecurrentinthedisplay.

Table of contents

Other Extech Instruments Multimeter manuals

Extech Instruments

Extech Instruments 38073A User manual

Extech Instruments

Extech Instruments 380900 User manual

Extech Instruments

Extech Instruments 380947 User manual

Extech Instruments

Extech Instruments EX530 User manual

Extech Instruments

Extech Instruments EX330 User manual

Extech Instruments

Extech Instruments MiniTec Series User manual

Extech Instruments

Extech Instruments 420 User manual

Extech Instruments

Extech Instruments 45170 User manual

Extech Instruments

Extech Instruments 381626 User manual

Extech Instruments

Extech Instruments EX530 User manual

Extech Instruments

Extech Instruments RC200 User manual

Extech Instruments

Extech Instruments EX710 User manual

Extech Instruments

Extech Instruments EX411A User manual

Extech Instruments

Extech Instruments EX503 User manual

Extech Instruments

Extech Instruments MN25 User manual

Extech Instruments

Extech Instruments MN26-NIST User manual

Extech Instruments

Extech Instruments 38394 User manual

Extech Instruments

Extech Instruments 45170CM User manual

Extech Instruments

Extech Instruments MA430 User manual

Extech Instruments

Extech Instruments SDL350 User manual

Extech Instruments

Extech Instruments EX310-NIST User manual

Extech Instruments

Extech Instruments EX570 User manual

Extech Instruments

Extech Instruments MP510A User manual

Extech Instruments

Extech Instruments MiniAmp Series User manual

Popular Multimeter manuals by other brands

Agilent Technologies

Agilent Technologies 34420A user guide

Fluke

Fluke 83 user manual

Hameg

Hameg HM 8012 manual

Mastech

Mastech MY70 Operation manual

Steren

Steren MUL-300 user manual

Somogyi Elektronic

Somogyi Elektronic home SMA 92 instruction manual

Gossen MetraWatt

Gossen MetraWatt METRAmax 6 operating instructions

PeakTech

PeakTech 4000 Procedure of calibration

YOKOGAWA

YOKOGAWA 90050B user manual

Gossen MetraWatt

Gossen MetraWatt METRALINE DMM16 operating instructions

Fluke

Fluke 8846A Programmer's manual

Tempo Communications

Tempo Communications MM200 instruction manual

Elenco Electronics

Elenco Electronics CM-1555 operating instructions

Mastech

Mastech MS8238C user manual

SDAR

SDAR 830A, 830B, 830D, 830C user manual

RS PRO

RS PRO RS-9519BT instruction manual

BGS technic

BGS technic 8890 instruction manual

Amprobe

Amprobe Hexagon 60 user manual